Means and method of winding loom bobbins



April 2, 1929. c. L. YOUNG 1,707,330

MEANS AND METHOD OF WINDING LOOI BOBBINS Filed March 21. 1928' III-IIIIII INVENTOR A'IToRNEys Patented iApr. 2, 1929.

uNirsnsr rEs PATENT oFFIcE.

CARLOS IJ- ,YOUNG, OF TVORCESTER, MASSACHUSETTS, ASSIGN'OR T CROMPTOhT KNOWLES L'OOM WORKS, OF WORCESTER, IY'IASSACITUSETTS, A CORPORATION OF MASSACHUSETTS.

MEANS'ANT) METHOD OF WINDING LOOM BOBBINS.

Application filed March '21, 1928. :SeriaI No. 263,470.

This invention relates to bobbins used in automatic weft replenishing looms. In such looms it is customary to wind a preliminary bunch of weft or filling on the butt of the" bobbin, to furnish'a reserve supply of weft found that the weft end leading to this preliminary bunch was frequently pulled out in handling and that the bunch was then often entirely unwound from the butt of the bobbin, in which case the bobbin would run out. immediately after indication and before transfer could take place.

It is the general ob ect ofmy invent1on tov I provide. a bobbin in which the weft endmay be so disposed that it will not become loosened or displaced in handling. A further object is to provide a special device by which the weft end may be threaded into the bobbin in such a way as to besecu'rely retained therein, andI have also provided a simple and convenient threading mechanism for use in conjunetionwith my improved bobbin,

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims. 7

A preferred form of the invention is shown in the drawings in which V Fig. 1 is a plan view of portions of a win'd ing machine embodying my improvements;

Fig. 2 is a side elevation, looking in the direction of the arrow 2 in Fig. 1;

Figs. 31 and 4 are partial plan views showmg the successive steps 1n the threading op erations; and I Fig. 5 is a sectional side elevation,taken along the line 55 in Fig. 3.

Referring to the drawings, I have shown parts of a windingmachine of a usualcommercial construction and including a spindle mounted to rotate at high speed insuitable bearings in a frame 11. The bobbin B is held by friction on the spindle 10 and the butt of the bobbin preferably engages washer 12 of rubber or leather, or other suitable material fora purpose to be described.

A reciprocating builder rod 14 is mounted parallel to the spindle 12 and supports a winding head 15 by which the yarn is led to the bobbin for the usual traverse and winding operation.

A rod is mounted in the frame 11 and may also be supported by a bearing projection 22. At. its outer end, the rod 20 takes: the form of a fixed spindle 24 adapted to receive the bobbin B. i

. The bobbin B is of the usual construction, but is provided with one or more openings 25 (-Fig. 5) extending axially through th butt of the bobbin near the periphery thereof and just inside of the bobbin-rings 26.

The rod 20 has adisc or'washer 28 secured thereto from which a hookneedle 30 projects axially outward. WVhen the bobbin B is placed on the spindle 24, it is turned until the book 30 is aligned. with one of the openings. 25, and the bobbin is then pushed further along the spindle until it engages the plate or Washer 28; ,VVhen in this position, the hook 30 extends through and beyond one of the openings 25 as indicated in Fig- 3. I V

The weft end W to be wound on the, bobbin is. then inserted inthe hook of the needle 30 and the bobbin is withdrawn from the spindle 24, as indicated in Fig. 4, thus threading the Weft TV through the opening 25. The bobbin is then mounted on the'regular winding' spindle'lO and the end of the weft V is held between the butt of thebobbin and the friction washer 12.

The weft may then be guided by a bunch building fork 32, While a suriicient amount of weft is wound on the bobbin to provide the desired weft reserve. It is not entirely necy essary to use the bunch buildingfork 32, as the weft may be'and often is, held in the hand of the operator. After the bunchis wound, the winding headj15 is threaded up and'the winding of the bobbin is completed in the usual manner. v

. After the bobbin is wound and removed,

the initial end of the weft W still extends through the opening 25' and is thus not liable.

to be caught or unwound during the handling ofthe bobbin. Consequently the full amount of reserve weft is availableafter indication of weft exhaustion. k

Hav1ng thus describedmy invention and the advantages thereof,.I do not wish to be limited to the details herein disclosed, other- I i Wise than as set forth in the claims, but What I claim is 1. A weft bobbin having a Weft receiving opening extending through the butt of said bobbin and parallel to the axis thereof but offset laterally therefrom.

2. A Weft bobbin having a Weft receiving opening extending through the butt of said bobbin parallel to the axis thereoi and adj accnt the periphery of said butt.

3. A device for threading Weit in a bobbin having an offset axially'extended opening in the butt thereof, comprising a fixed spindle to receive the bobbin, and a hook needle mounted in fixed position parallel to said throu h an offset axiall extended hole in i the butt of the bobbin, confining; the Weft end to prevent Wl'tllClliLWftl therefrom, ind- 111g" a bunch on said bobbin While the Weft end is thus confined, and thereafter completing the regular winding of the bobbin. y

In testimony whereof I have hereunto affixed my signature.

CARLOS L. YOUNG. 

